If you buy things through Microsoft’s Bing.com search engine, you can get up to 50 percent cash back on some items, like flowers and shoes. There are other sites that do this, such as ebates.com, but Microsoft is the only site that gives all of their sales commission back to the purchaser. We like Bing.com for other reasons, and one of them is the beautiful pictures that are changed every day.

On August 10, Microsoft launched “double cashback.” If a retailer gave a $20 rebate, Microsoft would give you $40. It was so successful that Microsoft ended the promotion three days early.